Count your color-only controls
Tell us how many status indicators rely on color alone, and how many use red/green pairs.
COLOR VISION AUDIT
Color Blind Preview
Simulates common color-vision deficiencies and identifies controls that rely too heavily on color differentiation.
- Uses your inputs in a transparent calculation
- Instant result with practical next steps
- No signup required
Planning guidance only. Validate important decisions with customer evidence and your delivery team.
YOUR INPUTS
Build your result
Complete every field. The result updates only when you choose Calculate.
How it works
Get a color-safety score
Color Blind Preview weighs color-only reliance and red/green pairing, the combination hardest for color-vision deficiency.
Add a secondary signal
Pair every color-coded state with an icon, shape, or text label, then re-check.
Continue learning: Who should approve MVP requirements?
Frequently asked questions
How common is color-vision deficiency?
Roughly 8% of men and 0.5% of women of Northern European descent have some form of red-green color-vision deficiency.
Is red/green really the worst combination?
Yes — deuteranopia and protanopia, the most common forms, make red and green very difficult to distinguish from each other.
Does this tool run an actual image simulation?
No. This is a structured self-assessment based on the controls you describe, not automated image analysis. Use a simulator (e.g. browser DevTools vision emulation) to visually verify.
How We Compare
| Feature | MVPHub | Chrome DevTools vision emulation | Coblis simulator |
|---|---|---|---|
| Quick structured score from your own inventory | Included | Not included | Not included |
| No file upload required | Included | Included | Not included |
| Visual pixel-level simulation | Not included | Included | Included |
| Free | Included | Included | Included |
DevTools vision emulation and Coblis both simulate color-vision deficiency visually on real screens. Color Blind Preview gives a fast structural score from your own inventory of color-coded controls, useful as a pre-check.
Related tools
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